[
https://issues.apache.org/jira/browse/FLINK-2147?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Flink Jira Bot updated FLINK-2147:
----------------------------------
Labels: approximate stale-major statistics (was: approximate statistics)
> Approximate calculation of frequencies in data streams
> ------------------------------------------------------
>
> Key: FLINK-2147
> URL: https://issues.apache.org/jira/browse/FLINK-2147
> Project: Flink
> Issue Type: New Feature
> Components: API / DataStream
> Reporter: Gábor Gévay
> Priority: Major
> Labels: approximate, stale-major, statistics
>
> Count-Min sketch is a hashing-based algorithm for approximately keeping track
> of the frequencies of elements in a data stream. It is described by Cormode
> et al. in the following paper:
> http://dimacs.rutgers.edu/~graham/pubs/papers/cmsoft.pdf
> Note that this algorithm can be conveniently implemented in a distributed
> way, as described in section 3.2 of the paper.
> The paper
> http://www.vldb.org/conf/2002/S10P03.pdf
> also describes algorithms for approximately keeping track of frequencies, but
> here the user can specify a threshold below which she is not interested in
> the frequency of an element. The error-bounds are also different than the
> Count-min sketch algorithm.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
